Mountain flow refrigerator water filter 4pk

I have Mountain floor refrigerator. Water filters model number MF 841 replaces filters for 439-6841 EDR3RXD1 replace every six months so water can taste delicious removes 97%percent harmful sediments it’s a 4piece these normally sell for 49 dollars plus 10 dollars to ship I am asking 25 dollars for the 4 pack firm brand new never opened before